If you thought campfire S'mores couldn't get any better than you need to try this outrageously sweet Rice Krispie S'more sandwich. These S'mores are made by sandwiching a large roasted marshmallow and slice of milk chocolate between two puffed cereal treat squares. In order to keep the marshmallows in the Rice Krispie squares from melting with you add the roasted marshmallow and chocolate you need to freeze the puffed cereal squares beforehand. This way when you go to add the pipping hot roasted marshmallow it'll defrost the Rice Krispie squares without separating them ensuring you'll have a deliciously yummy campfire dessert.